ASUS Prime X399 Ryzen Threadripper Getting Available

When Threadripper was released little over a month ago, the only offering ASUS had was the (lovely) X399 Zenith. It however is a 600 Europ motherboard. So ASUS has been working on something cheaper in...

One question, one objection (maybe two): 1. where is a PS2 combo (mouse/keyboard) port?; 2. is that huge heat sink on south bridge just that - a PASSIVE heat sink - or (and I suspect it is so, unfortunately) there's a vent underneath , which would be enough for me to dismiss the idea of buying that mobo.